Platypus bottles and reservoirs are so flexible they fit into tight spaces in any pack. They¿re lined with beverage-grade polyethylene, so they won¿t flavor your drinking water with an unpleasant plastic taste, and they¿re much lighter than conventional hard bottles, with far more versatility. You can add a Drinking Tube to create a hands-free hydration system, use the Filter Link for direct connection to your water filter, or swap the Bite Valve for the Shower Kit and rinse off your trail dust at the end of the day. Platypus has grown from an unpretentious little water bottle into a complete line of hydration products: insulated bottle holsters, easy-to-fill wide-mouth reservoirs, and sophisticated hydration packs for hikers and paddlers¿everything you need to remain properly hydrated for optimum performance.